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Immunization of MERS-CoV-2-infected mice with a sublethal dose of MERS-CoV or VRP-MERS-S
Journal article   Open access   Peer reviewed

Immunization of MERS-CoV-2-infected mice with a sublethal dose of MERS-CoV or VRP-MERS-S

Jian Zheng, Rudra Channapannavar and Stanley Perlman
STAR protocols, Vol.4(2), 102171
02/27/2023
DOI: 10.1016/j.xpro.2023.102171
PMCID: PMC9968614
PMID: 36920912
url
https://doi.org/10.1016/j.xpro.2023.102171View
Published (Version of record) Open Access

Abstract

Here, we detail the immunization of mice with a sublethal dose of MERS-CoV or two doses of replication-incompetent alphavirus replicon particles expressing MERS-CoV spike protein. We then describe steps to determine the outcome of immunization by challenging immunized mice with a lethal dose of MERS-CoV, as well as by detecting virus-specific neutralizing antibody and virus-specific T cell response via neutralization assay and flow cytometry, respectively. This protocol can be used to evaluate other CoV infections or vaccine-induced immune responses. For complete details on the use and execution of this protocol, please refer to Zheng et al. (2021).1 [Display omitted] •Mouse model to determine MERS-CoV-specific immune responses•A replication-incompetent alphavirus VRP-MERS-S is produced to immunize mouse model•Protective effects induced by immunization are evaluated via in vivo and ex vivo systems•Virus-specific T cells are determined by flow cytometry following peptide stimulation Publisher’s note: Undertaking any experimental protocol requires adherence to local institutional guidelines for laboratory safety and ethics. Here, we detail the immunization of mice with a sublethal dose of MERS-CoV or two doses of replication-incompetent alphavirus replicon particles expressing MERS-CoV spike protein. We then describe steps to determine the outcome of immunization by challenging immunized mice with a lethal dose of MERS-CoV, as well as by detecting virus-specific neutralizing antibody and virus-specific T cell response via neutralization assay and flow cytometry, respectively. This protocol can be used to evaluate other CoV infections or vaccine-induced immune responses.

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